摘要
基于高频动态测力天平基本原理,在脉动风荷载准定常假设的基础上,估计出输电塔脉动风荷载的空间分布.以建设中的向家坝—上海,锦屏—苏南±800 kV特高压直流输电线路工程中的输电塔ZVK为算例,验证文中方法的有效性.计算结果表明:该方法能较好地反应风荷载的空间分布特性,是对高频天平测力实验局限性的一种可靠方便的扩展.
Based on the basic principle of high-frequency force balance assumption of pulse wind loads, the spatial distribution of wind loads on numerical analysis is conducted on the crossing tower ZVK of the （HFFB） technique and the quasi-steady the transmission tower is estimated. Then, Xiangjiaba--Shanghai , Jinping--Sunan ＋ 800 kV ultra-high voltage （UHV） transmission project now being constructed, and the effectiveness of this proposed method is verified. Calculated results show that the proposed method extends the HFFB test reliably and feasibly because it well reveals the spatial distribution of wind loads on the transmission tower.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第6期147-152,共6页
Journal of South China University of Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50678181
50708118)
国家电网公司科技计划项目(SGKJ[2007]413)
关键词
风洞试验
高频天平测力试验
风荷载
空间分布
特高压
输电塔
wind tunnel test
high-frequency force balance test
wind load
spatial distribution
ultra-high voltage
transmission tower
作者简介
肖正直（1979-），男，博士生，主要从事输电塔抗风研究．E-mail：xzzd1979@hotmail．com
